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Laminated Scanlaser Matrix

Publishing Venue

IBM

Related People

Siegel, A: AUTHOR

Abstract

The apparatus is involved in the fabrication process utilized to form a laminated lithium niobate matrix arrangement for a digital scanlaser. To form the matrix arrangement, it is required that each crystal slab be cut into segments with each cut being smooth and parallel to the other. After undergoing evaporation treatment, it is required that the surfaces cut be accurately realigned and reconnected. The crystal handling jig shown at A is used for cutting and for realigning and reconnecting after evaporation treatment. The jig shown at B is used for the intermediate evaporation step.

Country

United States

Language

English (United States)

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Laminated Scanlaser Matrix

The apparatus is involved in the fabrication process utilized to form a
laminated lithium niobate matrix arrangement for a digital scanlaser. To form the
matrix arrangement, it is required that each crystal slab be cut into segments with
each cut being smooth and parallel to the other. After undergoing evaporation
treatment, it is required that the surfaces cut be accurately realigned and
reconnected. The crystal handling jig shown at A is used for cutting and for
realigning and reconnecting after evaporation treatment. The jig shown at B is
used for the intermediate evaporation step.

The crystal, shown at A and cut into segments 6 and 7, is first mounted, with
glycol phthalate, between small brass plates 1 and 2 of the jig. Plates 1 and 2
are mounted on respective dovetail holders 3 and 4. These are located in the
dovetail slides of the jig to provide proper cutting alignment. With gold foil bow 5
removed from the vicinity of the crystal, the latter is cut with a string cutter into
segments 6 and 7.

After cutting the crystal, dovetail holders 3 and 4, each now holding segments
6 and 7 of the crystal, are removed from the jig and inserted into the dovetail
slides of the jig, as shown at B. Then, 500 Angstroms of chrome and 1000
Angstroms of gold are evaporated on each of the newly cut surfaces through
evaporation mask 8. Height adjustment is provided by adjusting screw 9.